Chinese investors unloaded more than $1 billion in U.S. real estate in the third quarter, extending their recent retreat from hotels, office buildings and other foreign property under pressure from Beijing to reduce debt and curb money sent abroad. Insurers, conglomerates and other big investors from China sold $1.05 billion worth of U.S. real estate in the third quarter, while purchasing $231 million of property, according to data firm Real Capital Analytics.